Ball-retainer.



G. E. GOLBGROVE. BALL RETAINER.

APPLICATION FILED JAN. 2, 1909.

1,036,569., Patented Aug. 27, 1912.

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To all whom it may concern:

UNITED STATES PATENT curios.

CHARLES E. COLEGROVE, OF EAST CLEVELAND, OHIO, ASSIGNOR TO THE WHITESEW- ING MACHINE COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

BALL-RETAINER. Y

Specification of- Letters Patent.

Application filed January 2, 1909. Serial No. 470,388.

Be it known that I, CHARLES E. Com- GROVE, a citizen of, the UnitedStates, residing at East Cleveland, in the county of Guy-' ahoga andState of Ohio, have invented a' certain new and useful Improvement inBall-Retainers, of which the following is a full, clear, and exactdescription.

The present invention is directed to a ball retainer for anti-frictionbearings.

The invention more particularly relates to a retainer of that class usedfor preventing the balls from contacting with each other and whichthemselves move with the "balls as the latter move in their races.

The object of the invention has been to provide a retainer of suchconstruction that it may be used in certain locations where it has notbeen possible to employ ball retainers heretofore, as for example, inthe three point contact system made up of double cones and an inclosingraceway.

It has been my purpose to provide a ball retainer of this characterwhich may be eas ily constructed and into which the balls may be readilassembled.

The a ove objects and other useful advantages it will be seen areattained by that embodiment of my invention described in the followingspecification with reference to the accompany ng drawings, in which-Figure 1 is a side elevation of a retainer with the balls therein. Fig.2 is a transverse section through a ball retainer held between a doublecone and an inclosing raceway.

' Fig. 3 is an edge elevation of the retainer with the balls therein.Fig. 4 is a transverse section through the retainer with the ballsremoved.

As shown in the drawings, the retainer is made of a pair offrusto-conical rings A, A, each with a central opening B therein, therings being secured together at the periphery B of this central opening.The

rings need not be true cones, and, in fact, it is preferred to have themof spherical curvature. Each of the rings is perforated as at A, theperforations in each ring lying opposite to the perforations in theother. Balls C are held between the two rings so as to project beyondthe exposed surface of the rings on each side. The dimensions andlocations of the holes are also such with relation to the balls that thelatter when in use project beyond a a line drawn between the outerperipheries of the two rings. By

this arrangement it .is possible to pass a supporting spindle D throughthe central opening B and adjust a pair of cones F, F to the balls oneach side of the retaining rings while the balls simultaneously fitagainst a peripheral race E. This is an arrangement of raceway which itis frequently desired to have and one for which my retainer isespecially suitable.

Having thus described my claim:

A ball retainer comprising a pair of substantially frusto-conioal ringshaving coincident central openings, the rings contacting and securedtogether at the edges of said openings and diverging as they recedeoutwardly therefrom, serial openings oppositely invention, I

Patented Aug. 27, 1912.

disposed in said rings and balls of greater Copies of this patent may beobtained for fivecents each, by addressing the Commissioner of Patents,

Washington, D. 0.

